package com.example.micro.common.utils;

import lombok.extern.slf4j.Slf4j;

import java.lang.reflect.Field;
import java.lang.reflect.Modifier;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

@Slf4j
public class BeanUtils {
    /**
     * 把map转为java bean
     *
     * @param map
     * @param clazz
     * @return
     */
    public static <T> T fromMap(Map<String, Object> map, Class<T> clazz) {
        T t = null;
        try {
            t = clazz.newInstance();
            Field[] fields = clazz.getDeclaredFields();
            for (Field field : fields) {
                field.setAccessible(true);
                if (Modifier.isFinal(field.getModifiers()) || Modifier.isStatic(field.getModifiers())
                        || field.isSynthetic()) {
                    // 静态变量、synthetic和父类对象变量性忽略
                    continue;
                }
                // boolean类型
                if (field.getType().getName().equals("boolean")) {
                    field.setBoolean(t, Boolean.valueOf((String) map.get(field.getName())));
                } else if (field.getType().getName().equals("java.lang.Integer")) {
                    if (null != map.get((field.getName()))) {
                        field.setInt(t, Integer.parseInt(String.valueOf(map.get(field.getName()))));
                    }
                } else if (field.getType().getName().equals("java.lang.Long")) {
                    if (null != map.get((field.getName()))) {
                        field.setLong(t, Long.parseLong(String.valueOf(map.get(field.getName()))));
                    }
                } else { // 其他类型
                    if (null != map.get((field.getName()))) {
                        field.set(t, map.get(field.getName()));
                    }
                }
            }
        } catch (Exception ex) {
            log.error("ReflectUtil::fromMap error", ex);
        }
        return t;
    }

    /**
     * 把javabean 转成 map
     *
     * @param obj
     * @return
     */
    public static Map<String, Object> toMap(Object obj) {
        Map<String, Object> map = new HashMap<String, Object>();
        try {
            for (Field field : obj.getClass().getDeclaredFields()) {
                handleAccessible(field);
                if (null != field.get(obj)) {
                    map.put(field.getName(), field.get(obj));
                }
            }
            return map;
        } catch (Exception ex) {
            log.error("ReflectUtil::toMap error", ex);
        }
        return map;
    }

    public static <T> Map<String, T> toMap(Object obj, Class<T> t) {
        Map<String, T> map = new HashMap<>();
        try {
            for (Field field : obj.getClass().getDeclaredFields()) {
                handleAccessible(field);
                if (null != field.get(obj)) {
                    map.put(field.getName(), (T) field.get(obj));
                }
            }
            return map;
        } catch (Exception ex) {
            log.error("ReflectUtil::toMap error", ex);
        }
        return map;
    }

    public static Map<String, String> toStringMap(Object obj) {
        Map<String, String> map = new HashMap<>();
        try {
            for (Field field : obj.getClass().getDeclaredFields()) {
                handleAccessible(field);
                if (null != field.get(obj)) {
                    map.put(field.getName(), String.valueOf(field.get(obj)));
                }
            }
            return map;
        } catch (Exception ex) {
            log.error("ReflectUtil::toStringMap error", ex);
        }
        return map;
    }

    /**
     * 是否需要忽略权限检查
     *
     * @param field
     */
    private static void handleAccessible(Field field) {
        if (!field.isAccessible()) {
            field.setAccessible(true);
        }
    }

    /**
     * 把javabean 指定字段 转成 map
     *
     * @param obj
     * @return
     */
    public static Map<String, Object> toMap(Object obj, List<String> fieldList) {
        Map<String, Object> map = new HashMap<String, Object>();
        try {
            for (Field field : obj.getClass().getDeclaredFields()) {
                if (!fieldList.contains(field.getName())) {
                    continue;
                }
                handleAccessible(field);
                if (null != field.get(obj)) {
                    map.put(field.getName(), field.get(obj));
                }
            }
            return map;
        } catch (Exception ex) {
            log.error("ReflectUtil::toMap error", ex);
        }
        return map;
    }

    public static void main(String[] args) {
        int[] table = {1, 10, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 11, 110, 110115, 111, 112, 113, 114, 115, 116, 117, 118, 119, 12, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 13, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 14, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 15, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 16, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 17, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 18, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 19, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199, 2, 20, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 21, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 22, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 23, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239, 24, 240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 25, 250, 251, 252, 253, 254, 255, 256, 257, 258, 259, 26, 260, 261, 262, 263, 264, 265, 266, 267, 268, 269, 27, 270, 271, 272, 273, 274, 275, 276, 277, 278, 279, 28, 280, 281, 282, 283, 284, 285, 286, 287, 288, 289, 29, 290, 291, 292, 293, 294, 295, 296, 297, 298, 299, 3, 30, 300, 301, 302, 303, 304, 305, 306, 307, 308, 309, 31, 310, 311, 312, 313, 314, 315, 316, 317, 318, 319, 32, 320, 321, 322, 323, 324, 325, 326, 327, 328, 329, 33, 330, 331, 332, 333, 334, 335, 336, 337, 338, 339, 34, 340, 341, 342, 343, 344, 345, 346, 347, 348, 349, 35, 350, 351, 352, 353, 354, 355, 356, 357, 358, 359, 36, 360, 361, 362, 363, 364, 365, 366, 367, 368, 369, 37, 370, 38, 39, 4, 40, 41, 42, 420114, 43, 44, 45, 46, 47, 48, 49, 5, 50, 500101, 500102, 500118, 51, 510703, 52, 53, 54, 55, 56, 57, 58, 59, 6, 60, 61, 62, 63, 64, 65, 652824, 652825, 66, 67, 68, 69, 7, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 8, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 9, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99};
        String str = "alter table shop_stock_reduction%s add index idx_update_time(update_time);";
        System.out.println(String.format(str, ""));
        for (int i = 0; i < table.length; i++) {
            System.out.println((String.format(str, "_" + table[i])));
        }
    }
}
